headphone

hi guys
i am thinking to buy headphone for my laptop, specially for the purpose of binaural beats, guided meditation,BWGen and all type of audios which induce altred states of conscioudness/obe
so for the best effect what type of headphone should i buy......?
i mean are there some features or qualities it must have......? i wanna get the best effect
and i think some features do affect the effectiveness of binaural beats etc.
thanks

The only things that are important are that they have to be stereo headphones, and they cannot be noise-cancelling headphones. Other than that, I'm pretty sure any headphones will do.